Ruby - System Command - ps aux

Question

So I'm trying to find the PID of any process which has the word "control" in it. I'm in ruby on linux. This is the basic code so far

`ps aux | grep control`

If I run that in ruby, all the distinct lines that would come back when run in linux, get concatenated into one long string. How can I have ruby read the results in as a list, instead of one long string?

Answer 1

You can split it on the newline characters like so:

lines = (`ps aux | grep control`).split(/\n/)

With that done you can iterate over them, select things out using a regex, etc..